I've got one and it seems fine with no noticeable degradation of graphics (all wired network with a decent router).
Saying that, I'll probably be getting rid of it as it's occurred to me that I have a linux PC plugged into my TV and I can just install Steam on that and use it for streaming.
I'd be interested to know how you get on with this. I almost bought another pc just to play upstairs before realising this kind of thing exists.